HP DesignJet T520
I am having some problems locating a part from my usual sources. I need a main pca board and it is back ordered forever from HP. Any one know where I can get this part relatively quickly and reasonably? Part number used to be: CQ890-67023, the replacement number is now: CQ890-67097.

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How to Identify and Fix Common printer Problems ?

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From the front panel, touch the Connectivity menu ( ) icon, or the Wireless ( ) icon, and then touch the Network Status. The printer`s IP address should display on the front panel, if connected to a network.
Load a roll onto the printer From the front panel, tap , then Load roll. Open the roll cover. Insert the spindle into the printer, holding it by both ends. The blue hub should be on the left, as viewed from the front of the printer.
The HP DesignJet T520 inkjet large format printer (36 color) can make quick work of your print project sets and PDF documents with HP Click printing software.
Most printers with a touchscreen display or menu: Open the Wireless Summary or Network Settings menu to find the IP address. Printers without a touchscreen display or menu: Print an Information page or Wireless Network report using the button press combination for your printer. The IP address is on the printout.
Paper is housed in the printer`s paper tray, and most trays can be found along the bottom of the printer. There is usually a small notch on the face of the tray that pulls out so you can insert the paper. Within the paper tray, you will notice a guide that can be adjusted to fit your preferred paper length.
HP Designjet T120 and T520 ePrinter Series – Connect a computer to the printer by USB cable (Windows) You can connect your printer directly to a computer without going through a network, by using the printer`s built-in Hi-Speed USB device port.
The HP T520 A0 size (36″) printer can take rolls up to 36″ wide / 914mm and up to 50mt long (10cms diameter).
The printhead is a component in a printer that houses ink cartridges. It`s typically located under the cover of your printer, and it can become clogged with ink over time.
There isn`t much that can be done in the way of repairing a printhead, only replacing parts. By the time a printer technician assesses your printer, gets the part you need, and replaces it, you could have ordered a new printhead from allprintheads.com and replaced it yourself for much less.
HP Smart app (Android, iOS): Open the app, tap your printer, and then tap Printer Information or Network Information to find the IP address. Most printers with a touchscreen display or menu: Open the Wireless Summary or Network Settings menu to find the IP address.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Part Search
ANSWER : Did you try partsnow?

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HP DesignJet T520

smudged parts on printouts
ANSWER : You don’t give enough detail. It’s doubtful the new drums would cause smudging. If it’s just one color, then look at the surface of the drum. It should be visible. If you don’t see it on the drum and it repeats several times on the page, then it would be a worn or dirty surface on the fuser.

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HP DesignJet T520

officejet 4500 after paper load problem fixed : little part : where does it go
ANSWER : Sorry the pic didn’t make it. Here it is :

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HP DesignJet T520

Parts in printer are at end of service
ANSWER : Try this free reset utility. No need to change the pads as they hold way more than when the message comes up.

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HP DesignJet T520

Replacement parts: Paper tray 1 support arms
ANSWER : Try this. It’s only $7. http://www2.printerworks.com/cgi-win/tpwall.exe/find?RG5-5576-000

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HP DesignJet T520

Where have the good quality of phone parts?
ANSWER : Dazzling! Remarkable choice of shades!

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HP DesignJet T520

Unidentified part
ANSWER : Best guess would be the paper arm sensor for the Manual Feed tray. It would pop in the center above the opening where the paper feeds in. It dangles down on top of the paper and when there is no paper, it falls down into a recess and blocks the paper sensor above. Without an arm, the sensor would always think there is paper in the tray.

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HP DesignJet T520

Replacement and Repair of Parts of Impact Crusher
ANSWER : WTF is an impact crusher and why are you posting this garbage on a printer forum?

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HP DesignJet T520